Strange chicken egg air cell day 20

[oncebefore]

Hi, i’m still relatively new to the forum and figuring out things. Maybe this is a better place to post my question. I’m hatching 3 Trader Joe’s fertile white eggs using a DIY incubator with a temperature controller a humidity gauge. I set total four 9-10 days old eggs and 3 made it to today. Will be day 21 around midnight . I know store eggs take longer to hatch so I think maybe Tuesday if things go well.
And I always candle, my curiosity always wins . So here goes the candling pictures today.

Questions for the knowledgeable members here, and I know there are a lot of you here. I’m still very new to this forum and chicken egg hatching.

Q1: Egg 1 air cell. First 2 pictures. What’s this strange looking shape? Is the chick malpositioned?
Q2: Egg 2. 3rd picture . Is this an internal pip or rather, just about to internal pip?

I saw both chicks move upon candling.

Thanks in advance.

 

[Debbie292d]

See:
https://www.backyardchickens.com/threads/strange-air-cell-day-20.1612699/